Lower co-successful of frication Acetal screw
POM&lparPolyformaldehyde&rpar is a engineering plastics of non-aspect-chain&comma high density&comma substantial crystalline and linear polymer&comma which is praised “CZPT Metal”&comma and has extensive outstanding performances&comma these kinds of as&colon Wear-resistance&comma large hardness&comma anti-impregnant&comma great rigidity &lparTensile modulus of elasticity&rpar&comma chemical balance&comma isolation resistance and dimensional stability&period POM has widely applied in Vehicle industries&comma digital and electric merchandise&comma commodity&comma pipeline & fittings&comma specific apparatus and so on&comma which can be as an alternative of the bronze&comma Zinc&comma tin and other metals&time period
Besides POM-H is usually copolymerized with ethylene oxide together&comma in purchase to avoid the melting of POM material in the high temperature&interval POM-H has the far better performances than POM-C in its substantial crystalline&comma mechanical power and rigidity&period And POM-C has the far better performances than POM-H in its reduced melting point&comma temperature steadiness&comma fluxion attribute and machining ability&time period
Father more&comma POM-H&plusPTFE&comma which is produced from the Delrin POM Resin that maxed Teflon fiber symmetrically&comma has the low co-efficient of frication&comma great lubrication&comma wear-resistance&comma non-creepage resistance&period of time
Auto industries&colon POM has a big software in vehicle industries&comma simply because the mechanical elements manufactured by POM&comma which has the positive aspects of large mechanical power&comma large hardness&comma very good dress in-resistance&comma low co-productive of friction&comma effortless to keep&comma decreasing cost and so on&comma can be used in cars alternatively of coppery 50 percent stalk and planet equipment&period It not only conserving copper components&comma but also bettering service life&interval At the engine gas method&comma components for hose valves and case include of radiator&comma cooling fluid’s standby situation&comma h2o valve&comma oil box’ cover&comma pump impeller&comma shell of gasification device and accelerator pedal and so on&time period
Electronic and electric powered CZPT&colon Simply because of its reduce electrical power consuming&comma large dielectric power and insulation resistance and electronic arc resistance&comma POM has commonly used in electronic and electrical CZPT&comma this sort of as&colon Shell of digital spanner&comma shell of digital scissors&comma shell of coal drilling equipment&comma manage of change&comma components also for cellphone&comma wi-fi recorder&comma online video tape recorder&comma television&comma personal computer&comma electrograph&comma calculagraph&comma bracket of recorder tape and so on&interval
Agricultural device&colon Part of manual sprayer&comma joint and transport component of seeder&comma parts of milk machine&comma shell of irrigation and drainage&comma valve&comma joint and bush of water and so on&period of time
Other field&colon
Pharmacy & packing Device&colon Transporting screw&comma earth equipment&comma gear bar&comma chain wheel and cushion bar and so on&period
CZPT industries&colon Water tap&comma window frame&comma clean pot&comma drinking water tank&comma pulley for portiere&comma shell of h2o meter and tie-in of h2o pipe&time period
Residence | Item No. | Device | POM-C | POM-H | POM-H+PTFE | |
Mechanical Properties | 1 | Density | g/cm3 | 1.41 | one.forty three | one.50 |
two | Water absorption(23ºCin air) | % | .twenty | .20 | .seventeen | |
3 | Tensile power | MPa | 68 | 78 | 55 | |
4 | Tensile strain at split | % | 35 | 35 | ten | |
five | Compressive pressure(at two%nominal strain) | MPa | 35 | 40 | 37 | |
six | Charpy effect strength (unnotched) | KJ/m two | ≥150 | ≥200 | ≥30 | |
seven | Charpy effect power (notched) | KJ/m 2 | 7 | ten | 3 | |
8 | Tensile modulus of elasticity | MPa | 3100 | 3600 | 3200 | |
9 | Ball indentation hardness | N/mm two | 140 | a hundred and sixty | 140 | |
10 | Rockwell hardness | – | M84 | M88 | M84 |